QR Code - this is two-dimensional bar code (bar code) that provides information for quick recognition of her with the camera on your mobile phone.
When the QR-code can encode any information, such as text, phone number, a link to your website or business card.
QR codes can be used in Google's Android, BlackBerry OS, Nokia Symbian Belle, Apple iOS devices (iPhone/iPod/iPad), Microsoft Windows Phone, Google Goggles, 3rd party barcode scanners, and the Nintendo 3DS. These devices support URL redirection, which allows QR codes to send metadata to existing applications on the device. mbarcode is a QR code reader for the Maemo operating system.